PCM1770 具有耳机放大器的 24 位低功耗立体声音频 DAC
PCM1770 描述
The PCM1770 and PCM1771 devices are CMOS, monolithic, integrated circuits which include stereo digital-to-analog converters, headphone circuitry, and support circuitry in small TSSOP-16 and VQFN-20 packages.
The data converters use TI's enhanced multilevel 
architecture, which employs noise shaping and multilevel amplitude quantization to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1770 and PCM1771 devices accept several industry standard audio data formats with 16- to 24-bit data, left-justified, I2S, etc., providing easy interfacing to audio DSP and decoder devices. Sampling rates up to 50 kHz are supported. A full set of user-programmable functions is accessible through a 3-wire serial control port, which supports register write functions.
|
PCM1770 |
PCM1771 |
PCM1772 |
PCM1773 |
PCM1774 |
| SNR(Typ)(dB) |
98 |
98 |
98 |
98 |
93 |
| # DACs |
2 |
2 |
2 |
2 |
2 |
| # Inputs / # Outputs |
0 / 2 |
0 / 2 |
0 / 2 |
0 / 2 |
0 / 2 |
| Sampling Rate(Max)(kHz) |
48 |
48 |
48 |
48 |
50 |
| Resolution(Bits) |
24 |
24 |
24 |
24 |
16 |
| Digital Audio Interface |
L,R,I2S |
L,I2S |
L,R,I2S |
L,I2S |
L,R,I2S,DSP |
| Control Interface |
SPI |
H/W |
SPI |
H/W |
SPI, I2C |
| Analog Supply(V) |
1.6 - 3.6 |
1.6 - 3.6 |
1.6 - 3.6 |
1.6 - 3.6 |
2.4 - 3.6 |
| Digital Supply (up to 5 V)(V) |
1.6 - 3.6 |
1.6 - 3.6 |
1.6 - 3.6 |
1.6 - 3.6 |
1.71 - 3.6 |
| Pd(Typ)(mW) |
6.5 |
6.5 |
6.5 |
6.5 |
7 |
| Additional Features |
HP Out |
HP Out |
|
|
Headphone, Mix |
| Operating Temperature Range(°C) |
0 to 70 |
0 to 70 |
0 to 70 |
0 to 70 |
-40 to 85 |
| Pin/Package |
16TSSOP, 20VQFN |
16TSSOP, 20VQFN |
16TSSOP, 20VQFN |
16TSSOP, 20VQFN |
20QFN |
PCM1770 特性
- Multilevel DAC Including Headphone Amplifier
- Analog Performance (VCC, VHP = 2.4 V):
- Dynamic Range: 98 dB Typ
- THD+N at 0 dB: 0.1% Typ
- THD+N at -20 dB: 0.04% Typ
- Output Power at RL = 16 Ohm: 13 mW (Stereo), 26 mW (Monaural)
- 1.6-V to 3.6-V Single Power Supply
- Low Power Dissipation: 6.5 mW at VCC, VHP = 2.4 V
- System Clock: 128 fS, 192 fS, 256 fS, 384 fS
- Sampling Frequency: 5 kHz to 50 kHz
- Software Control (PCM1770):
- 16-, 20-, 24-Bit Word Available
- Left-, Right-Justified, and I2S
- Slave/Master Selectable
- Digital Attenuation: 0 dB to -62 dB, 1 dB/Step
- 44.1-kHz Digital De-Emphasis
- Zero Cross Attenuation
- Digital Soft Mute
- Monaural Analog-In With Mixing
- Monaural Speaker Mode
PCM1770 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| PCM1770PW |
ACTIVE |
0 to 70 |
1.50 | 1ku |
TSSOP (PW) | 16 |
250 | JEDEC TRAY (10+1) |
1770 |
| PCM1770PWG4 |
ACTIVE |
0 to 70 |
1.50 | 1ku |
TSSOP (PW) | 16 |
250 | JEDEC TRAY (10+1) |
1770 |
| PCM1770PWR |
ACTIVE |
0 to 70 |
1.35 | 1ku |
TSSOP (PW) | 16 |
2000 | LARGE T&R |
1770 |
| PCM1770PWRG4 |
ACTIVE |
0 to 70 |
1.35 | 1ku |
TSSOP (PW) | 16 |
2000 | LARGE T&R |
1770 |
| PCM1770RGA |
ACTIVE |
0 to 70 |
1.65 | 1ku |
VQFN (RGA) | 20 |
250 | TUBE |
1770 |
| PCM1770RGAG4 |
ACTIVE |
0 to 70 |
1.65 | 1ku |
VQFN (RGA) | 20 |
250 | TUBE |
1770 |
| PCM1770RGAR |
ACTIVE |
0 to 70 |
1.50 | 1ku |
VQFN (RGA) | 20 |
2000 | LARGE T&R |
1770 |
| PCM1770RGARG4 |
ACTIVE |
0 to 70 |
1.50 | 1ku |
VQFN (RGA) | 20 |
2000 | LARGE T&R |
1770 |
PCM1770 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| PCM1770PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM1770PW |
| PCM1770PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM1770PWG4 |
PCM1770PWG4 |
| PCM1770PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM1770PWR |
| PCM1770PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM1770PWRG4 |
PCM1770PWRG4 |
| PCM1770RGA |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM1770RGA |
| PCM1770RGAG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM1770RGAG4 |
PCM1770RGAG4 |
| PCM1770RGAR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM1770RGAR |
| PCM1770RGARG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM1770RGARG4 |
PCM1770RGARG4 |
PCM1770 应用技术支持与电子电路设计开发资源下载
- PCM1770 数据资料 dataSheet 下载.PDF
- TI 德州仪器音频数模转换器产品选型与价格参考 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)
PCM1770 工具与软件